Machine for making book covers



Nov. 13, 1928.

J. V. WHITE MACHINE FOR MAKING BOOK COVERS 8 ,Sheets-Sheet l Filed Aug. 6, 1927 J0 @im w1 1 7,( l s J. V. WHITE MACHINE FOR MAKING BOOK COVERS Nov. 13, 19.28.'v 1,691,691

A Filed Aug. 6, 1927 8 sheets-sheet 2 "TNQM Non 13, 192s. A 1,691,691

; J.` V. WHITE MACHINE FdR MAKING BooK oovERs Filed Aug. 6, 1927 8 Sheets-Sheet 3 2&9' y g 256 a@ f@ l TGM f2.1 /wm s J. v. WHITE MACHINE FOR MAKING BOOK COVERS Now'e 13, m28. l v 1,691,691

Filed Aug- 6, 1927 8 Sheets-Sheet 4 i l J. V. WHITE i l MACHINE FOR MAKING BooK covERs Fled Aug. 6, 1927 8 Sheets-Sheet 5 60 F214 I u xI s: i //Il j Nov. 13, 1928. 1,69L69 J. V. WHITE MACHINE FOR MAKING BooK COVERS Filed Aug. 6, 1927 8 Sheets-Sheet 6 Nov. 13, 1928. l Y 1,691,691

J. v. WHITE 'Y MACHINE 'FOR MAKING BOOK COVERS Filed Aug. 6, 1927 B Sheets-Sheet '7 Zgy @Zal/z l. a" @www mfw NOV. 13, 1928., I 1,691,691

J. v. WHHTE MACHINE FOR MAKING BOOK COVERS Filed Aug. 6., 1927 8 Sheets-Sheet 8 Patented Nov. 13, 1928. i y y risorse srares eareNToFr-ica JOSEPH V. WHITE, OF CHICAGO, ILLINOIS.

MACHINE FOR MAKING BOOK COVERS.

Application led August 6, 1927. Serial No. 211,180

This invention relates to machinesl vfor Fig 8 is a view of the same with the top 50 making book covers and the like particularly plate removed; n those having round corners. Fig. 9 is an enlarged section on the broken Heretofore it has been found to be impracline 9 9 of Fig. 7 K f ical to construct a machine which would Fig. 10 is a partial enlarged section'on the properly fold the leather or fabric cover line 10 of Fig. 8; 55 about the cover boards in the making of books Fig. 11 is a view of the top plate as viewed having round corners and consequently books on the line 11 of Fig. 9; of this character, particularly those having Fig. 12 is a. bottom view of the corner sec- 10 very thin flexible cover boards, have been made tion;

by hand. Books of this character are used in Fig. 13 is an enlarged plan Viewr of the 60 considerable numbers a-s small pocket pass grooved strip for folding over the lends of books for banks, pocket note books and the the cover as shown in Fig. 1;

like. p Fig. 14 is an end elevation of the same; y 15 The primary object of this invention is to Fig. 15 is a. partial section on the line `15 provide a machine which will properly assemof Fig. 13; 65

ble the cover boards in the exiblecoverwhich Fig. 16 is an enlarged plan view of the has been previously covered with glue or toggle mechanism for forcing in the grooved other suitable adhesive, fold the-overhanging strips at the ends of the book cover;

20 edges of the flexible cover over the edges ofthe F ig. 17 is a top plan view of the sliding bar cover board, at the same time holding down carrying the grooved strips for folding in 70 the cover boards upon the flexible cover, the head and tail of the book cover; y neatly fold in the rounded corners ofthe cover F ig. 18 is an enlarged side elevation of the and Withdraw the mechanism by which the same; Y

cover boards are held down. Fig. 19 is a transverse section on the line 19 This and other objects, as will hereinafter of Fig. 18; 75 appear, are accomplished by this invention .Fig 20 is a top plan View of a block carrywhich is an improvement on the machine for ing the slider for folding in the corner of the making book covers which is the invention of cover;

A, l. Jacobs and is set forth in Letters Fat- Fig. 21 is atransverse section on the line 21 ent No. 580,111 granted April 6, 1897. The of Fig. 20; Y V. present invention is fully described in the Fig. 22 is a top plan vievv` of a slug'which following specification and shown in the acacts as a filler between two ofthe corner seccompanying drawing-s, in which: tions shown in Fig. `6 when the same are Figure 1 is a partial top plan view of a maspaced for use on larger book covers;

chine for making book covers .embodying the Fig. 23 is a. top plan view of a modified 85 invention; form of the invention as applied to theplat- Fig. 2 is la partial enlarged section'on the form of the Jacobs machine; line 2 of Fig. 1, which will be better under- Fig. 24 is an end' elevation of the same as 40 stood by reference to the Fig. 4 of the patent viewed on the linek24 of Fig. 23;

to Jacobs; Figs. 25 and 26 are vertical sections on the 90 Fig. 3 is a partial enlarged section on the lines 25 and 26 of Fig. 23; and line 3 of Fig. 2; Fig. 27 is a view similar to Fig. 24 showing 4 is a side elevation of the picker head; the cam grooves for controlling the action of Fig. 5 is an end elevation of the same; the folding mechanism.

Fig. 6 is atop plan View of the picker head The invention as illustrated in Figs. 1 to 22 95 viewed on the line 6 of Fig. 4; inclusive comprises frames B, B for carrying Fig. 7 is a top plan view of one of the cora stationary cross bar M and an adjustable ner sections of the picker head removed; folder bar Q.. Between these is mounted a platform P which is movable up and down by mechanism not shown, herein, but fully shown in the above mentioned patent to Jacobs. This platform is adjustable to the size of the finished book which is to be folded thereon and when in its uppermost position passes in between the bars M and Q, as shown in Fig. 2 and lies flush l:therewith so as to receive the flexible cover X which is made of fabric7 cloth or the like and which has iii'cvieu-'fly been coated on its upper surfacewithfglue or other adhesive.

During the time the rover X is beingdrawn into place the picker head N1 is reist and turned, as will hereinafter be described.

I With .the picker head lout of the way, Athe strapf'l draws the slide L tothe left in Fig'. 2, and the fingers n, 0 grasp it near the edge-of the cover X after which the straps Z1. of which there are two, one on each-side ofthe frame, pull the slide L'baek until the flexible cover X lies immediately `over 'the platformfP which atthat time is raised so to lbelevel with the barsM and. Q. The finger a then raises permitting the cover 'X to stop in the dotted line position as shown.

Durin'g this ltime the Ypicker head N1 has raised until the arms134 are free from the vert-ical guides 133 and hasswung around the shaftN until it lies in a position 180O from that shown in 'F ig. 1. In'this position `the picker head descends (by mechanism .not shown herein.) u pon the previously vpositionedpile of cover boards,two of which, one

at each side of'the'pi'cker head, are Iheld by p the'sdftrubber suckers :156 (Fig. 4) which lie on the ibottom ofthe lpickerhead and which are connected to a suction `pump (not shown) bymeans df'rubber tubes 129. This pump is so operated so as .to produce a vacuum to ithe suckers '156 Vfrom "the timejthe picker vhead rests lupon thev top of the Apreviously positioned pile of coverboards until this picker head has again raised and swungback to the posit-ion shown .in Fig. 1 in which it :has pressedlthese cover boards lfirmly down yupon the lued `top of the cover X.

y"T e structure thus far described `is that of the lJaco'bs'patent. To the ypickerlhead ofthe Jacobs machine is now added four corner seetions 201,;202f203and 204 as shown in l"'Fig. 'whidh-,are secured to members-205 by means ofscrews 206. 'These'members in turn are secured to the bottomof the picker `head 4Nl'by means of set-screws 207. Thisarrangement permits the corner sections to be spread in either direction." Fillers .208 are shown bei ends ofthe lfiller 208.

Thecorner section202 shown in detail in Figs7'to 11, comprises top and botomplates 209andi21'0 with spaeercollars 2211, the whole Y217 (Fig. 12) inthe lower plate 210.

The finger holder 213 carries a number of spring metal fingersr218 which are held in place byanysuitablemeans such as the screws 219. The outer ends 218L of the fingers 218 -are bent down slightly below the bottom of the plate 210 so as to exert a pressure upon the -cover boards lwhen the picker head is pressed down.

The finger 'holder 213 is guided -by-a slot 213"L into which fits a guide bar 213ib asfshown i plate 209 has-a guideway 209"L into which is slidably fitted a block 220 lwhich is normally held inthe position shown in'-Fig.'7,by'means of the helical spring 221. This `block is drawn in against the action of the spring221 by means of the pull chain222, the action of which will later lie-described. The block 220 has-a slot 223 which extends across it'atzsubstantially a 45 angle. In this slot extends a in 224 which is, earried'by the `finger holder 215. Thus it willbe seen that as Athe block 220 is moved back and `forth under the` action of the chain 222 -and ofthe spring 221, the bar 224 sliding in the slot223 1will cause the finger 'holder 215 'to move 'back and forth along the guideway 21'7.

AThe `finger holder `215 is provided with a laterally extending slotl 225 which Aengage'sza pin v226 on the finger l'holder .214. Thus, as the finger holder 215 isdrawn inwardlythe slot225'acting on the pin 226=moves the'linger holder 214 in. Similarly a s'lot 227on the other' side-ofltheinger holder 215 engages a pin 228 on the finger holder 213 which gives the latter a movement similar to thatof the 1 finger holder 214.

The pull chain 222extendsup'through an opening 229 (Fig. 6)V and is secured at its upper-end-to la bar 230 whichis carriedfup'on thepiekerhead Nl'by means of ytfwo parallel vertical'rcds231 4) which aresguided in suitableopenings in the picker 'head, 'the bar 2309beingnormally held-down'by means of compression springs 232. When 'the picker head 'descends' a fpredetermined `distance Aas shown in Fig. 2, the rods231-stri-ke theftop of the stationarybar Mfthereby "lifting the bar 230 .and Vlpulling up on thechain 222, and Vpulling in the fingers 218 as shown in Fig. 2sofas ftowithdraw themlcomplete'ly from the folded over edges X1 of the cover. It is necessary to lock these fingers in this y position so as to permit the picker head to be lifted away from the case or cover. The details of this lock will be seen in Figs. 7 to 9. The corner nger holder 215 is provided with an inclined surface 215a and the upper thicker portion of this holder has a hole 215". A locking pin 233 passes through the top of the lower portion of the finger holder 215 and is pressed thereagainst by means of wire spring 234 which is held by means of a screw 235. Thus, when the linger holder 215 as it is drawn in, the locking pin 233 rides up over the inclined surface 215a and the pin 233 is forced into the hole 215b by the spring 231. While so held the picker head can be raised bodily from the cover which has just been folded as shown in Fig. 2, the suction on the tubes 129 having previously been released.

To release this locking mechanism I have provided releasing lingers 236 which are carried by the bar 230 and which pass under the locking pins 233 and lift them as the picker head N1 moves up toward the bar 230. The picker head N1 now moves up to a position above the bars M and Q and swings around as has been previously described, until it is again above the pile of cover boards where it will pick up two more boards and the operations previously explained are repeated.

As the picker head N1 ascends, the folded cover is pushed off the top of the platform P by means of a discharging slide l() which is guided on the rod l1 and operated by means of a belt 43. The slide 40 then returns and the platform is raised to the level of the bars M and Q and the series of operations previously described is repeated.

The front folder-bar Q, Figs. 2 and l, is adjustable toward and from the central crossbar M by the screws S, that extend tothe rear of the machine, Figs. 1 and 5, and are driven by a cross-shaft (not shown) and the parts are adjusted so that the space between the edges of the front folder-bar Q and the central cross-bar M corresponds to the measurements of the cover from the top to the bottom edges. Hence the fabric is folded up by coming against these bars M and Q, as the platform is pushed down by the picker, and then the edge-turners t t (Figs. 1 and 17) are moved toward each other by an end motion given by an end motion given to the slide cambars u u', in which are diagonal slots receiving blocks with pins connected to the edgeturners t zf. which are adjustably carried on bars t. These slide cam-bars receive motion simultaneously from the rock-shaft R and arms R', that have a rod 1 at their upper ends, passing into forks depending from the slide cam-bars u u', and the rock-shaft R ree ceives a reciprocating motion from a cam as shown in the patent to Jacobs.

As the cam-bars u, u move to the right in Fig. 1, the diagonal slots force the edge-turners to t, t inwardly over the fingers 218, the edge-turners or folding-in members having grooves on their lower surfaces adapted to upon the outer-edge of the cover-boardY Y- which has substantially the contour of the outer ends of the fingers 2-18 (F ig. 1). The members t, t are adjustably mounted on the bar t and secured thereon by means of thumb-screws. This bar is moved laterally by means. of the diagonal slots previously referred to.

End edge-turners 260 are slidably mounted between thev bars M and Q on a member 261 which is held between these bars. A strut 262 (Figs. 1 and 16) is secured to the member 261 and is pivotally connected to one end of'a toggle-joint 263. The other end of the togglejoint is pivotally connected to the edge-turner members 260. The cent-ral pin 264e of the toggle is connected to the rod 265 whichY isY adjustably mounted on the bar t carried byV the bar Q. As the bar 25- movesv in, the rod `265 straightens out the toggle thereby forcing the edge-turners 260 inwardly and causing them to turn in the lend margins of the book cover. 7

The bars M and Q also adj ustably carry at each end a. block 266 which has a guideway therein in which is slidably mounted a slide 261 which has a pin 268 which lies in a hole 269 in the arm 270 carried by the member t. Thus, asV the member t is moved back and forth the block 266 is also moved vparallel thereto.

The block 266 has a diagonal guideway 271 in which operates a pin 272 on the corner Y edge-turner 273 which is slidably mounted in the Lblock 266 preferably at an angle of 45 to the motion of the slidel 267. ner member has a series of grooves running parallel to its length and the underside. These grooves are adapted to overlie the corner fingers'27ll carried yby the finger holder 215 (Fig. 8). l

This core Y After the side and end edge-turners have operated to fold in the side and end vmargins X of the cover, corner members 273 move in to fold the corners. Owing to the fact that the guideway 271 is wider than the pi-n272, the member 273 does not move .until the guide 267 has moved some distance and 'the corne-r members therefor act after the side andend members have folded over these margins.

Thus, it will be seen that the cover is made by having its top, bottom and side margins folded over the edges of the cover boards after which the round-ed corners, which have preof the'nover boar-.ds ena-.e :folded in. The .side margins Vsvllerile being folded in .are pressed down in 'fw/hait mioht he rtermed :a .series .of pleats between spaced :parallel lingers 218, `thereby .pressing together :two glued 4surtfanes of the flexible .eover fabric. AImmediately `ater pressing :in the top, bottom :and .side edges, the v,previously rounded corners are ilorced yand Ypressed `.down .between parallel fingers carried by :theeorner finger holders 215, thereby orminga series of :substantially :parallel pleats which lie substantially `at .a angle -to both the .adjacent fstraightedges.

.'Ihns it T.will be .seen that .a machine has been provided which is rrapid and substanvtimlxly .automatic in rits operation :and which vin factual 'practice zhas fbeen Vfonfnd 'to neatly and successfully perform an operation `which ibas henetoltore been considered necessarily a manuali (one, particularly where the soca'lled r@over boards `were V'quite l.th-in and Aflexible Vso .that of themselves they do not provide a still `edge .over which xthe flexible :cover fabric could kbe folded.

iln .Figsto .27 inclusive is shown a modification of the deviee ein 'which ithe platform P1 carries its own .side ifolders, :the picker head tbenrxg the :same as that which has previously been described To the sides and ends .of the platform P1 :are secured later. lextendin3; `armsi237 which lie some dis- Y tance below ithe top of 'the iplatorm P1 and are adapted to carry guide blocks 238 which are hingedly secured :thereto by means of 'carried mpon ;a stationary bar 248, Ythe bars M tand 'Qef lthe other anachine being 'removed .in .this .construction When the platform iP1 reaches vits highest 'point rthe :are in ithe :position shown Vin Y Fig. 27 in which t-he top of the edge turner ,240 is level with the top v-of A.the bar '248 so .the glued cover can vbe readily -slipped fthereol' .and onto 'the plfatflorm P1, the outer edge @of the cover :resting upon the finner 'end .df :the odge itin-ner 240.

Thefguide block 238 carriesapin249 which engagesthe cam groene .2.10 1n .the member 248. As `the :platform P1 ,descends the pin 245 following the cam groove 246 forces Ythe @edge turner 2.40 straight :in :until `it is Anear the outer edge of `the `platform P1. ,About this .ftime the pin :249 following the cam groove 7250beginstoa-move iin thereby followsthe guide f-blocli 238 `upwardly and -'inlemmi wandly :about the links 239. Thi-slmovement lizfts the outer ledge .of athe book .cover (not -pi'n1245 in ther-am 246 forces ithe lturner 240 over the top of fthe folding over .margin ot' .the cover. The under surface ot' ,the :turner 240 is serrated to match the 4lingers 218 of thepieher head so that the margin :thus folded over ,and pressed down between 'these linge-rs is lett serrated :and will vretain this serrated appearancefaffter :the .linger have been withdrawn :as .has been previously" described.

ln the saine way the corner is folded iin Yby means-.of a member 2.5i vwhich is slidably mounted in :the rguide block 252 and l nas a guide pin 253 operating 'in the cam groote ofa stationary block, .not shown. The `guide block i252 lis carried upon van arm 254 by means ,of parallel links 255. A spr-ing 256 normally :holds the .member 251 in its outer@ most position as shown in 25,-while a spring 257 holds vthe :guide bloc-lr 252 `in the retracted position. The guide :block 252 ca-rries a pin 258 which together with the :pin 253 engage cam grooves similar to those shown inthe block'247 for forcing the corner of `the ,cover `upwardly and inwardly, fisting the same and `,pressing :itfdown between 'the corner fingers of ,the p-ickerhead. e

dit vwill 4:be `nnderstoo d, however, Ath at the vtop and side edge .turner-s Y240 ract `advarme Afol; the corner member 251 so that lthe corner is ioldedin and pressed down afterthe top :and side folds have been ana-de.

After this folding operation is completed the pins'245 and Q49 continuing downthrough :the cam grooves 236 and 250 are returned `to Athe original normal position-s ithereby witl drawing the folder members `and permitting the Ytop slide 40 tofforce the folded cover oli the platform P1.

In 'both Vthe forms which have been de-y scribed, the folded Cover then passes '-to one side ofthe-machine where it is .firmly :pressed while .a lnew cover is being assembled and folded.

'llVhile I lhave shown and described but a few embodiments oi'this invention, it is to be iunderstood that it is capable of ymany modivfications.` Changes therefore in .the-construction and arrangement may be made which do .not depart from the spirit and scope ol' the invention as disclosed `in the appended claims.

Ielaim: v

In alcaseanaliing machine, edgetnrners for folding a flexible cover over .the edges of cover-boards,.spaced radial. fingers for supporti-ng` the edges of the cover-boards, means for pressing said Cover down between the lingers, and 'means for withdrawing said lingers after'theedgesof the cover are folded in and `presseddown :between said vfiirigers.

2. In a case-making; machine, edge-turners 'for foldingl a flexible cover over the .edgesof cover boards, spaced radial :fingers .for sup* shown) and lthe farther movement rol' the porting the edges of the cover-boards, means g movable inwardly parallel toisaid fingers for pressing said cover down between the lingers, and means for withdrawing said lingers after the edges of the' cover are folded in and pressed down between said'fingers. Y

3. In a case-making' machine, edge-turners for folding a flexible cover over the edges of cover-boards, spaced radial fingers for supporting the edges of the cover-boards, means having a grooved surfacepassing over said fingers for pressing said cover down between the fingers, and means for withdrawing said fingers after the edges of the cover are folded in and pressed down between said fingers.

4. In a case-making machine, edge-turners for folding a flexible cover over the edges of cover-boards, spaced radial fingers for supporting the edges of the cover-boards, means for pressing said cover down between the fingers, and means for withdrawing' said fingers after the edges of the cover are folded in and pressed down between said fingers and before said pressing means is withdrawn.

5. In a casesmaking machine, a picker head adapted to swing to one position to pick up cover-boards and to another to deposit them on a glued cover, radiating pins on said picker head, means for forcing said cover up and for folding it over the edges of the coverboards, sai-d means for folding having grooves in the face registering with the pins and adapted to overlie the same so as to cause the folded-over edge to be forced into contact with the glued cover between said pins, and means for withdrawing said pins inwardly.

6. In a case-making machine, a picker head adapted to swing to one position to pick up cover-boards and to another to deposit them on a glued cover, radiating pins on said picker head, the ends of the pins being adapted to lie substantially at the edge of the cover-boards, means for forcing said cover up and for folding it over the edges of the cover-boards, said means for folding having grooves in the face registering with the pins and adapted to overlie the same so as to cause the folded-over edge to be forced into contact with the glued cover between said pins, and means for withdrawing said pins inwardly.

7. In a ease-making machine, a picker head adapted to swing to one position to pickup cover-boards and to another to deposit'them on a glued cover, radiating pins on said picker head, means for forcing said cover up and for folding it over the edges of the cover-boards, said means for folding having grooves in the face registering with the pins and adapted to overl-ie the same so as to cause the foldedover edge to be forced into contact with the glued cover between said pins, and means operable on the downward movement of the e sicher head for withdrawing said pins inwardly from the folded-over edges.

8. In a case-making machine, a picker head adapted to swing to one position to pickup cover-boards and to another to deposit them on a glued cover, radiating pins onsaid picker head, means for forcing said cover up and for folding it over the edges of the cover-boards, said means for folding having grooves in the face registering withthe pins and adapted to overlie the same so as to cause the folded-over edge to be forced into contact with the glued cover between said pins, means operable on the downwardmov-ement of the picker head for withdrawing said pins inwardly from the folded-over edges, means for latching said first mentioned means in the inward position, and means for releasing the latching means on the up-stroke of the picker head.

9. In a machine for making round corner cases for books, a platform, means for advancing a glued flexible cover over-said platform, a picker head adapted to carry coverboards to a position above said cover andto press them thereon, said picker head having a plurality of pins extending outwardly from the straight edges, grooved plates movable Vthereover to fold themargins of the cover over the edges of the cover-boards, a plurality of parallel pins at the corners extending outwardlyV at substantially 450 from the side pins, a grooved plate movable inwardly over said corner pins to fold .the margin in and crimp it between said cover pins where it will be held by the glue on the cover, and means for withdrawing thel pins from the turnedover edges.

l0. In a machine for making round corner cases for books, a platform of substantially the outline of the finished case, die members through which said platform passes to bend the margins of the cover over the edges of the cover-boards, means for advancf ing a glued flexible cover over said platform, a picker head adapted to carry cover-boards to a position above said cover and to press them thereon, said pickerhead having a plurality of pins ext-ending outwardly from the straight edges, grooved plates movable thereover to fold the margins of the cover over the edges of the cover-boards, a plurality of parallel pins at the corners extending outwardly at substantially 4:50 from the side pins, a grooved plate movable inwardly over said corner pins to fold the margin in and crimp it between said cover pins where it will be held by the glue on the cover, and'means for withdrawing the pins from the turned-over edges.

11. In a machine for making round corner casesfor books, a platform, means for advancing a glued flexible cover over said platform, a picker head adapted to carry cover-boards to a position above' said cover and to pressV them thereon, said picker head having a plurality, of pins extending outwardly from the straight edges, grooved platesk movable there v meneer evento-fold'the-mungns'o the-cover over the margin in and crimp; it between saicl cover edgesof the covenboardsa plurality of pa'r-V pins Where itI will be held by the. glue on the allel pnsat, thel oornersextending outwardly cover,` and means fox: withdrawing the pins 10 at substantially'llo from t-he-sidepng4 said from the tlunedv-over'edges.

,5* pins extending'tn substantially the. out'exedgee In testimony whereof'l have hereunto set of'stnidzcover-boards7 a groovedplate movable my hand this 16th dayrof J 111351927 inwardly over said cornery pins to fold the z JOSEPH V. 'WHITE 

